But first a fun fact: Only 6 songs managed to go #1 in all the 19 countries I've analyzed and scan either gold or platinum in Japan. 3 of these 6 songs come from 1 artist
Fun fact: Womanizer has gone to #1 in more countries than Toxic. Perhaps that's a reason to not take this countdown too seriously but it's kind of funny since most people, including myself, believe Toxic is more iconic.